- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT07612462
Evaluation of the Clinical Performance of a Bulk Fill Resin Composite in Cuspal Coverage Restorations of Vital Posterior Teeth (RCT)
21. maj 2026 opdateret af: Ahmed Mohamed Mohamed Azazy, Future University in Egypt
This clinical study aims to compare bulk-fill and conventional composite resins in cuspal coverage restorations of posterior teeth.
The primary outcomes include evaluating wear resistance, fracture incidence, and recurrent caries at different follow-up periods.
Bulk-fill composites are designed for easier placement in thicker increments, potentially improving clinical efficiency.
The study seeks to determine whether bulk-fill materials can provide comparable or superior performance to conventional composites in restoring structurally compromised teeth.
Studieoversigt
Status
Aktiv, ikke rekrutterende
Intervention / Behandling
Undersøgelsestype
Interventionel
Tilmelding (Anslået)
50
Fase
- Ikke anvendelig
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
-
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Cairo Governorate
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New Cairo, Cairo Governorate, Egypten, 11835
- Future University in Egypt
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Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
Tager imod sunde frivillige
Ingen
Beskrivelse
Inclusion Criteria:
- Adult patients of 20 to 50 of age
- Molars teeth
- Medically free
- Vital teeth
- Males or females
- one or cusps affected
- Patient consent
- Good oral hygiene (plaque index 0 or 1)
- Absence of parafunctional habits.
- No abscess
Exclusion Criteria:
- Xerostomia and bruxism.
- Endodontically treated teeth
- Systematic disease
- Extremely poor oral hygiene sever or chronic periodontitis.
- Pregnant and lactating women.
- No subgingival margin
- Allergic to used materials
- Patient are not present during recalls .
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
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Aktiv komparator: Bulk-Fill Composite Group
Participants in this group will receive cuspal coverage restorations using a bulk-fill composite resin.
The material will be placed in a single increment following adhesive application according to the manufacturer's instructions.
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This intervention involves performing cuspal coverage restorations in posterior teeth using Shofu Beautifil Bulk Fill composite resin.
The composite will be applied in a single increment following the manufacturer's adhesive and placement protocol.
Each restoration will be evaluated clinically for wear resistance, fracture incidence, and recurrent caries during the follow-up period.
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Occlusal Wear
Tidsramme: T0: Baseline examination (1 week after restoration) T1: 6 months T2: 9 months T3: 12 months
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0 = No visible wear
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T0: Baseline examination (1 week after restoration) T1: 6 months T2: 9 months T3: 12 months
|
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Fracture Resistance
Tidsramme: T0: Baseline examination (1 week after restoration) T1: 6 months T2: 9 months T3: 12 months
|
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T0: Baseline examination (1 week after restoration) T1: 6 months T2: 9 months T3: 12 months
|
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Caries Recurrence
Tidsramme: T0: Baseline examination (1 week after restoration) T1: 6 months T2: 9 months T3: 12 months
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0 = No recurrent caries at restoration margin 1 = Recurrent caries present and continuous with margin |
T0: Baseline examination (1 week after restoration) T1: 6 months T2: 9 months T3: 12 months
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Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
Publikationer og nyttige links
Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.
Generelle publikationer
- Yu P, Xu YX, Liu YS. Polymerization shrinkage and shrinkage stress of bulk-fill and non-bulk-fill resin-based composites. J Dent Sci. 2022 Jul;17(3):1212-1216. doi: 10.1016/j.jds.2021.12.004. Epub 2021 Dec 23.
- Nakhostin A, Panahandeh N, Toudeshky HH, Sheikh-Al-Eslamian SM. Assessment of creep and compressive strength: bulk-fill versus conventional composites. BMC Oral Health. 2025 Apr 16;25(1):579. doi: 10.1186/s12903-025-05769-x.
- Morimoto, S., Lia, W. K. C., Gonçalves, F., Nagase, D. Y., Gimenez, T., Raggio, D. P., & Özcan, M. (2021). Risk Factors Associated with Cusp Fractures in Posterior Permanent Teeth-A Cross-Sectional Study. Applied Sciences, 11(19), 9299.
- Mitra A, Sharma S, Bhattacharyya A, Maity AB, Majumder G, Datta S. The fracture resistance of restored mandibular molars using different cavity designs: An in vitro comparative evaluation. J Conserv Dent Endod. 2024 Dec;27(12):1285-1288. doi: 10.4103/JCDE.JCDE_699_24. Epub 2024 Dec 10.
- Marovic D, Taubock TT, Attin T, Panduric V, Tarle Z. Monomer conversion and shrinkage force kinetics of low-viscosity bulk-fill resin composites. Acta Odontol Scand. 2015 Aug;73(6):474-80. doi: 10.3109/00016357.2014.992810. Epub 2014 Dec 29.
- Manhart, J. (2020). Direct cusp replacement in the molar region using a thermoviscous bulk fill composite restorative material - a clinical case report. International Dental African Edition, 9, 33-22.
- Leprince, J. G. P., W. M.; Vanacker, J.; Sabbagh, J.; Devaux, J. (2020). Polymerization shrinkage and stress of bulk-fill resin composites: A review of the current literature. Journal of Esthetic and Restorative Dentistry, 32(1), 12-22. doi:10.1111/jerd.12511
- Garoushi, S. V., P. K.; Lassila, L. (2021). Fracture resistance of molars with MOD cavities restored with short fiber reinforced composite or bulk fill composites. Journal of Prosthodontic Research, 65(2), 217-233. doi:10.1016/j.jpor.2020.06.004
- Farias-Neto, A. G., L. M.; Silva, L. A. B.; Morimoto, S. (2020). Single-visit direct composite restorations with cuspal coverage: A clinical review. Brazilian Dental Journal, 31(6), 503-509. doi:10.1590/0103-6440202003202
- Edrees, N. S. A. A., H. S. A.; Abdelaziz, K. M.; Alajam, W. (2017). Benefits and drawbacks of bulk-fill dental composites: A systematic review. European Journal of Pharmaceutical and Medical Research, 4(10), 124--137.
- Deliperi S, Alleman D, Rudo D. Stress-reduced Direct Composites for the Restoration of Structurally Compromised Teeth: Fiber Design According to the "Wallpapering" Technique. Oper Dent. 2017 May/Jun;42(3):233-243. doi: 10.2341/15-289-T.
- Daruich PM, Brizuela M. Remineralization of Initial Carious Lesions. 2023 Apr 17. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2026 Jan-. Available from http://www.ncbi.nlm.nih.gov/books/NBK573067/
- Chesterman J, Jowett A, Gallacher A, Nixon P. Bulk-fill resin-based composite restorative materials: a review. Br Dent J. 2017 Mar 10;222(5):337-344. doi: 10.1038/sj.bdj.2017.214.
- Alzahrani, F. A. A., I. F.; Aljinbaz, A.; AlZain, F. S. (2021). Effect of cavity design and restoration technique on fracture resistance of premolars restored with resin composites. Operative Dentistry, 46(4), E195-E203. doi:10.2341/20-111-L
- Alshiddi, I. F. A., A.; AlZain, F. S. (2020). Fracture resistance of weakened molars restored with direct and indirect resin-based restorations. Journal of Adhesive Dentistry, 22(1), 72-65. doi:10.3290/j.jad.a43712
- Al-Asmar AA, Al-Hiyasat AS, Abu-Awwad M, Mousa HN, Salim NA, Almadani W, Rihan F, Sawair FA, Pitts NB. Reframing Perceptions in Restorative Dentistry: Evidence-Based Dentistry and Clinical Decision-Making. Int J Dent. 2021 Dec 31;2021:4871385. doi: 10.1155/2021/4871385. eCollection 2021.
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart (Faktiske)
1. december 2025
Primær færdiggørelse (Anslået)
1. december 2026
Studieafslutning (Anslået)
31. december 2026
Datoer for studieregistrering
Først indsendt
21. maj 2026
Først indsendt, der opfyldte QC-kriterier
21. maj 2026
Først opslået (Faktiske)
28. maj 2026
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
28. maj 2026
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
21. maj 2026
Sidst verificeret
1. maj 2026
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Andre undersøgelses-id-numre
- CUSPALCOVERAGE
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
Ingen
Studerer et amerikansk FDA-reguleret enhedsprodukt
Ingen
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .
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